diff --git a/setup.py b/setup.py
index 4ed25d4..e897014 100755
--- a/setup.py
+++ b/setup.py
@@ -39,6 +39,6 @@
         'Programming Language :: Python :: 3.5',
         'Programming Language :: JavaScript',
     ],
-    install_requires=["six==1.10.0"],
+    install_requires=["six >= 1.10.0"],
     test_suite="test_execjs",
 )